Package List: 4x Hex Wheel Hubs 4x Pins 4x Nuts Product Weight: Approx.25g Feature: 1.Hop-up upgrades for 1:8th RC car, truck, buggy . 2.Made Of Quality Aluminum Alloy Note: 1.Actual product may vary slightly from photos shown. Please allow us to have some slight measurement errors. 2.Please feel free to contact with us if there is any quality issue, we will try our best to make you satisfied. Please Check Your Manual Or Ask Us For More Specific Information.